diff --git a/tcs-upgrade/kafka/kafka.yaml b/tcs-upgrade/kafka/kafka.yaml
index 6488bab..f19f44d 100644
--- a/tcs-upgrade/kafka/kafka.yaml
+++ b/tcs-upgrade/kafka/kafka.yaml
@@ -67,10 +67,6 @@ spec:
     enabled: true
   listeners:
     external:
-      authentication:
-        type: plain                
-        jaasConfig:                 
-          secretRef: credential
       externalAccess:
         type: nodePort
         nodePort: